Observation information
- date-obs: 2022-05-18
- time-obs: 06:07:01.830300000
- date-end: 2022-05-18
- time-end: 08:34:10.813500000
- obs_id: A11_080T01_9000005146
- exposure: 2857.86781649
- sourceid: Cygnus X-1
- observer: ajayratheesh
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A11_080T01_9000005146_35883cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35883cztM0_level2_quad_clean.evt
|
Size (bytes) | 522,809,280 | 77,394,240 |
Size | 498.6 MB
| 73.8 MB
|
Events in quadrant A | 2,970,982 | 519,579 |
Events in quadrant B | 5,696,569 | 465,660 |
Events in quadrant C | 3,328,495 | 500,490 |
Events in quadrant D | 3,470,488 | 479,026 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 34 | 0 |
B | 0 | 34 | 0 |
C | 0 | 34 | 0 |
D | 0 | 35 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 110 | 0 |
B | 0 | 110 | 0 |
C | 0 | 110 | 0 |
D | 0 | 110 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11936 | 3 |
B | 0 | 20391 | 2 |
C | 0 | 13129 | 2 |
D | 0 | 13784 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5411 | 9 | 0.166328% |
B | 5411 | 1052 | 19.441878% |
C | 5411 | 83 | 1.533912% |
D | 5411 | 97 | 1.792645% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
A | 7384 | 5412 | 1 | 1 | 0.01% | 0.02% | |
B | 7384 | 5412 | 865 | 865 | 11.71% | 15.98% | |
C | 7384 | 5412 | 69 | 69 | 0.93% | 1.27% | |
D | 7384 | 5412 | 65 | 65 | 0.88% | 1.20% | |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
Pixel properties |
Quadrant properties |
Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
A | 10 | 83 | 166250 | 1142.45 | 715 | 705 | 144.9 |
A | 15 | 169 | 31844 | 214.89 | 715 | 705 | 144.9 |
A | 13 | 254 | 9476 | 60.53 | 715 | 705 | 144.9 |
B | 5 | 63 | 2065960 | 17068.4 | 637 | 623 | 121.0 |
B | 5 | 172 | 763201 | 6302.11 | 637 | 623 | 121.0 |
B | 5 | 255 | 294935 | 2432.26 | 637 | 623 | 121.0 |
C | 15 | 214 | 226422 | 1443.55 | 671 | 679 | 156.4 |
C | 1 | 23 | 188417 | 1200.52 | 671 | 679 | 156.4 |
C | 0 | 207 | 166590 | 1060.94 | 671 | 679 | 156.4 |
D | 13 | 249 | 193174 | 1157.95 | 680 | 665 | 166.3 |
D | 8 | 195 | 165789 | 993.23 | 680 | 665 | 166.3 |
D | 2 | 250 | 160474 | 961.26 | 680 | 665 | 166.3 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
|
|
Quadrant B |
Quadrant D |
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Quadrant C |
Count rate plots and images
Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
|
|
Quadrant-wise count rates
Data is divided into 100 sec bins |
|
|
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
|
|
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
|
|
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
|
|
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
|
|
Housekeeping plots
Parameter |
Plot |
CZT HV Monitor | |
D_VDD | |
Temperature 1 | |
Veto HV Monitor | |
Veto LLD | |
Alpha Counter | |
_CPM_Rate | |
CZT Counter | |
+2.5 Volts monitor | |
+5 Volts monitor | |
_ROLL_ROT | |
_Roll_DEC | |
_Roll_RA | |
Veto Counter | |